What Is a Cooling Water Circulator?
A cooling water circulator is a device that controls the temperature of samples and equipment by cooling and circulating water inside the equipment.
By maintaining the temperature of industrial, measuring, and food processing equipment at a constant level, it is possible to adjust conditions for product manufacturing and process control.
The temperature setting range of cooling water circulators is from -20°C to 30°C. The appropriate cooling water circulator is selected based on its cooling capacity and installation location.
Uses of Cooling Water Circulators
Cooling water circulators are used in various applications in the automotive industry, semiconductor manufacturing, industrial machinery, machine tools, analysis equipment, and food processing industries.
Examples of use include:
- Temperature control of machine tools, cooling and heat retention of measuring machines
- Indirect cooling and cleaning of raw materials in food processing plants
- Temperature control of metalworking machinery
- Electron beam cooling of measuring equipment
- Temperature control of heat generated during grinding in polishing machines
- Cooling of nozzles in plastic molding machines and injection molding machines
- Cooling of the heat source in the light source of electron microscopes
- Removing reaction heat during pharmaceutical production
- Temperature control of printing machines
Principle of Cooling Water Circulators
Cooling water circulators are classified by their cooling method and circulation method.
There are two types of cooling methods: air-cooled and water-cooled, and two types of circulating systems: closed circulating and open circulating.
1. Air-Cooled Type
The air cooling type uses a fan to cool the liquid, and the heat removed is discharged to the outside. It has a relatively simple structure and allows for downsizing, but has the disadvantage that the temperature of the installation site becomes higher because the heat is discharged to the outside.
2. Water-Cooled Type
The water-cooled type cools by circulating water. Since cooling water is circulated by a pump, no heat is generated. It is more efficient and less noisy than the air-cooled type, but its structure is more complicated. Liquids used in the water-cooled type include tap water, antifreeze, ethanol, and methanol.
3. Sealed Circulation Type
In the sealed circulation type, the parts involved in cooling, such as the heat exchanger, are sealed. Since these parts are sealed and therefore prone to rust, it is necessary to drain the condensation of water that forms near the connectors.
4. Open Circulation Type
In the open circulation type, the cooling water circulator is placed in a tank filled with water.